3d4e888988
dialog is distributed from GPLv2 to LGPLv2 and introduces a number of new features and a new and better libdialog API. The existing libdialog will be kept temporarily as libodialog for compatibility purposes until sade, sysinstall and tzsetup have been either updated or replaced. __FreeBSD_version is now 900030. Discussed on: -current Approved by: core Obtained from: http://invisible-island.net/dialog
455 lines
11 KiB
Perl
455 lines
11 KiB
Perl
# Functions that handle calling dialog(1) -*-perl-*-
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# $Id: dialog.pl,v 1.4 2001/10/13 00:40:22 tom Exp $
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# Return values are 1 for success and 0 for failure (or cancel)
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# Resultant text (if any) is in dialog_result
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# Unfortunately, the gauge requires use of /bin/sh to get going.
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# I didn't bother to make the others shell-free, although it
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# would be simple to do.
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# Note that dialog generally returns 0 for success, so I invert the
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# sense of the return code for more readable boolean expressions.
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$scr_lines = 24;
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require "flush.pl";
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sub rhs_clear {
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return system("dialog --clear");
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}
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sub rhs_textbox {
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local ( $title, $file, $width, $height ) = @_;
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system("dialog --title \"$title\" --textbox $file $height $width");
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return 1;
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}
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sub rhs_msgbox {
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local ( $title, $message, $width ) = @_;
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local ( $tmp, $height, $message_len );
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$message = &rhs_wordwrap($message, $width);
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$message_len = split(/^/, $message);
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$tmp = $message;
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if (chop($tmp) eq "\n") {
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$message_len++;
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}
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$height = 4 + $message_len;
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$tmp = system("dialog --title \"$title\" --msgbox \"$message\" $height $width");
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if ($tmp) {
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return 0;
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} else {
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return 1;
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}
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}
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sub rhs_infobox {
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local ( $title, $message, $width ) = @_;
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local ( $tmp, $height, $message_len );
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$message = &rhs_wordwrap($message, $width);
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$message_len = split(/^/, $message);
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$tmp = $message;
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if (chop($tmp) eq "\n") {
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$message_len++;
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}
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$height = 2 + $message_len;
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return system("dialog --title \"$title\" --infobox \"$message\" $height $width");
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}
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sub rhs_yesno {
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local ( $title, $message, $width ) = @_;
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local ( $tmp, $height, $message_len );
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$message = &rhs_wordwrap($message, $width);
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$message_len = split(/^/, $message);
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$tmp = $message;
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if (chop($tmp) eq "\n") {
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$message_len++;
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}
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$height = 4 + $message_len;
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$tmp = system("dialog --title \"$title\" --yesno \"$message\" $height $width");
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# Dumb: dialog returns 0 for "yes" and 1 for "no"
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if (! $tmp) {
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return 1;
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} else {
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return 0;
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}
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}
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sub rhs_gauge {
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local ( $title, $message, $width, $percent ) = @_;
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local ( $tmp, $height, $message_len );
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$gauge_width = $width;
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$message = &rhs_wordwrap($message, $width);
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$message_len = split(/^/, $message);
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$tmp = $message;
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if (chop($tmp) eq "\n") {
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$message_len++;
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}
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$height = 5 + $message_len;
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open(GAUGE, "|dialog --title \"$title\" --gauge \"$message\" $height $width $percent");
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}
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sub rhs_update_gauge {
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local ( $percent ) = @_;
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&printflush(GAUGE, "$percent\n");
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}
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sub rhs_update_gauge_and_message {
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local ( $message, $percent ) = @_;
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$message = &rhs_wordwrap($message, $gauge_width);
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$message =~ s/\n/\\n/g;
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&printflush(GAUGE, "XXX\n$percent\n$message\nXXX\n");
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}
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sub rhs_stop_gauge {
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close GAUGE;
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}
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sub rhs_inputbox {
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local ( $title, $message, $width, $instr ) = @_;
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local ( $tmp, $height, $message_len );
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$message = &rhs_wordwrap($message, $width);
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$message_len = split(/^/, $message);
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$tmp = $message;
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if (chop($tmp) eq "\n") {
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$message_len++;
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}
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$height = 7 + $message_len;
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return &return_output(0, "dialog --title \"$title\" --inputbox \"$message\" $height $width \"$instr\"");
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}
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sub rhs_menu {
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local ( $title, $message, $width, $numitems ) = @_;
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local ( $i, $tmp, $ent, $height, $menuheight, @list, $message_len );
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shift; shift; shift; shift;
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@list = ();
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for ($i = 0; $i < $numitems; $i++) {
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$ent = shift;
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$list[@list] = "\"$ent\"";
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$ent = shift;
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$list[@list] = "\"$ent\"";
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}
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$message = &rhs_wordwrap($message, $width);
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$message_len = split(/^/, $message);
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$tmp = $message;
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if (chop($tmp) eq "\n") {
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$message_len++;
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}
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$height = $message_len + 6 + $numitems;
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if ($height <= $scr_lines) {
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$menuheight = $numitems;
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} else {
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$height = $scr_lines;
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$menuheight = $scr_lines - $message_len - 6;
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}
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return &return_output(0, "dialog --title \"$title\" --menu \"$message\" $height $width $menuheight @list");
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}
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sub rhs_menul {
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local ( $title, $message, $width, $numitems ) = @_;
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local ( $i, $tmp, $ent, $height, $menuheight, @list, $message_len );
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shift; shift; shift; shift;
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@list = ();
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for ($i = 0; $i < $numitems; $i++) {
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$ent = shift;
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$list[@list] = "\"$ent\"";
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$list[@list] = "\"\"";
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}
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$message = &rhs_wordwrap($message, $width);
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$message_len = split(/^/, $message);
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$tmp = $message;
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if (chop($tmp) eq "\n") {
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$message_len++;
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}
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$height = $message_len + 6 + $numitems;
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if ($height <= $scr_lines) {
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$menuheight = $numitems;
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} else {
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$height = $scr_lines;
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$menuheight = $scr_lines - $message_len - 6;
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}
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return &return_output(0, "dialog --title \"$title\" --menu \"$message\" $height $width $menuheight @list");
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}
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sub rhs_menua {
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local ( $title, $message, $width, %items ) = @_;
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local ( $tmp, $ent, $height, $menuheight, @list, $message_len );
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@list = ();
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foreach $ent (sort keys (%items)) {
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$list[@list] = "\"$ent\"";
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$list[@list] = "\"$items{$ent}\"";
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}
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$message = &rhs_wordwrap($message, $width);
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$message_len = split(/^/, $message);
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$tmp = $message;
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if (chop($tmp) eq "\n") {
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$message_len++;
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}
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$numitems = keys(%items);
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$height = $message_len + 6 + $numitems;
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if ($height <= $scr_lines) {
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$menuheight = $numitems;
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} else {
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$height = $scr_lines;
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$menuheight = $scr_lines - $message_len - 6;
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}
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return &return_output(0, "dialog --title \"$title\" --menu \"$message\" $height $width $menuheight @list");
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}
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sub rhs_checklist {
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local ( $title, $message, $width, $numitems ) = @_;
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local ( $i, $tmp, $ent, $height, $menuheight, @list, $message_len );
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shift; shift; shift; shift;
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@list = ();
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for ($i = 0; $i < $numitems; $i++) {
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$ent = shift;
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$list[@list] = "\"$ent\"";
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$ent = shift;
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$list[@list] = "\"$ent\"";
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$ent = shift;
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if ($ent) {
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$list[@list] = "ON";
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} else {
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$list[@list] = "OFF";
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}
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}
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$message = &rhs_wordwrap($message, $width);
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$message_len = split(/^/, $message);
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$tmp = $message;
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if (chop($tmp) eq "\n") {
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$message_len++;
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}
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$height = $message_len + 6 + $numitems;
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if ($height <= $scr_lines) {
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$menuheight = $numitems;
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} else {
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$height = $scr_lines;
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$menuheight = $scr_lines - $message_len - 6;
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}
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return &return_output("list", "dialog --title \"$title\" --separate-output --checklist \"$message\" $height $width $menuheight @list");
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}
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sub rhs_checklistl {
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local ( $title, $message, $width, $numitems ) = @_;
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local ( $i, $tmp, $ent, $height, $menuheight, @list, $message_len );
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shift; shift; shift; shift;
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@list = ();
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for ($i = 0; $i < $numitems; $i++) {
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$ent = shift;
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$list[@list] = "\"$ent\"";
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$list[@list] = "\"\"";
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$list[@list] = "OFF";
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}
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$message = &rhs_wordwrap($message, $width);
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$message_len = split(/^/, $message);
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$tmp = $message;
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if (chop($tmp) eq "\n") {
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$message_len++;
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}
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$height = $message_len + 6 + $numitems;
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if ($height <= $scr_lines) {
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$menuheight = $numitems;
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} else {
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$height = $scr_lines;
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$menuheight = $scr_lines - $message_len - 6;
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}
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return &return_output("list", "dialog --title \"$title\" --separate-output --checklist \"$message\" $height $width $menuheight @list");
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}
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sub rhs_checklista {
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local ( $title, $message, $width, %items ) = @_;
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local ( $tmp, $ent, $height, $menuheight, @list, $message_len );
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shift; shift; shift; shift;
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@list = ();
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foreach $ent (sort keys (%items)) {
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$list[@list] = "\"$ent\"";
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$list[@list] = "\"$items{$ent}\"";
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$list[@list] = "OFF";
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}
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$message = &rhs_wordwrap($message, $width);
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$message_len = split(/^/, $message);
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$tmp = $message;
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if (chop($tmp) eq "\n") {
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$message_len++;
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}
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$numitems = keys(%items);
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$height = $message_len + 6 + $numitems;
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if ($height <= $scr_lines) {
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$menuheight = $numitems;
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} else {
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$height = $scr_lines;
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$menuheight = $scr_lines - $message_len - 6;
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}
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return &return_output("list", "dialog --title \"$title\" --separate-output --checklist \"$message\" $height $width $menuheight @list");
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}
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sub rhs_radiolist {
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local ( $title, $message, $width, $numitems ) = @_;
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local ( $i, $tmp, $ent, $height, $menuheight, @list, $message_len );
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shift; shift; shift; shift;
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@list = ();
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for ($i = 0; $i < $numitems; $i++) {
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$ent = shift;
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$list[@list] = "\"$ent\"";
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$ent = shift;
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$list[@list] = "\"$ent\"";
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$ent = shift;
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if ($ent) {
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$list[@list] = "ON";
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} else {
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$list[@list] = "OFF";
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}
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}
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$message = &rhs_wordwrap($message, $width);
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$message_len = split(/^/, $message);
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$tmp = $message;
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if (chop($tmp) eq "\n") {
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$message_len++;
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}
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$height = $message_len + 6 + $numitems;
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if ($height <= $scr_lines) {
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$menuheight = $numitems;
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} else {
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$height = $scr_lines;
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$menuheight = $scr_lines - $message_len - 6;
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}
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return &return_output(0 , "dialog --title \"$title\" --radiolist \"$message\" $height $width $menuheight @list");
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}
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sub return_output {
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local ( $listp, $command ) = @_;
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local ( $res ) = 1;
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pipe(PARENT_READER, CHILD_WRITER);
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# We have to fork (as opposed to using "system") so that the parent
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# process can read from the pipe to avoid deadlock.
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my ($pid) = fork;
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if ($pid == 0) { # child
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close(PARENT_READER);
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open(STDERR, ">&CHILD_WRITER");
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exec($command);
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die("no exec");
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}
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if ($pid > 0) { # parent
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close( CHILD_WRITER );
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if ($listp) {
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@dialog_result = ();
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while (<PARENT_READER>) {
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chop;
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$dialog_result[@dialog_result] = $_;
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}
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}
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else { $dialog_result = <PARENT_READER>; }
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close(PARENT_READER);
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waitpid($pid,0);
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$res = $?;
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}
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# Again, dialog returns results backwards
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if (! $res) {
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return 1;
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} else {
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return 0;
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}
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}
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sub rhs_wordwrap {
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local ( $intext, $width ) = @_;
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local ( $outtext, $i, $j, @lines, $wrap, @words, $pos, $pad );
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$outtext = "";
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$pad = 3; # leave 3 spaces around each line
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$pos = $pad; # current insert position
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$wrap = 0; # 1 if we have been auto wraping
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$insert_nl = 0; # 1 if we just did an absolute
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# and we should preface any new text
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# with a new line
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@lines = split(/\n/, $intext);
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for ($i = 0; $i <= $#lines; $i++) {
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if ($lines[$i] =~ /^>/) {
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$outtext .= "\n" if ($insert_nl);
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$outtext .= "\n" if ($wrap);
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$lines[$i] =~ /^>(.*)$/;
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$outtext .= $1;
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$insert_nl = 1;
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$wrap = 0;
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$pos = $pad;
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} else {
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$wrap = 1;
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@words = split(/\s+/,$lines[$i]);
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for ($j = 0; $j <= $#words; $j++) {
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if ($insert_nl) {
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$outtext .= "\n";
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$insert_nl = 0;
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}
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if ((length($words[$j]) + $pos) > $width - $pad) {
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$outtext .= "\n";
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$pos = $pad;
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}
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$outtext .= $words[$j] . " ";
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$pos += length($words[$j]) + 1;
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}
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}
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}
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return $outtext;
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}
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############
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1;
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